Continuously changing random signal generating arrangement and method
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United States of America Patent
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Jun 3, 2003
Grant Date -
Dec 19, 2002
app pub date -
Jun 15, 2001
filing date -
Jun 15, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the particular embodiments of the invention described in the specification, a first signal generator produces a signal which changes in cycles having approximately straight line segments between maximum and minimum values at a first rate and a second signal generator produces a signal which changes in cycles having approximately straight line segments at a second rate which is an order of magnitude greater than the first rate. The maximum level of the second signal during any cycle is dependent upon the instantaneous signal level of the first signal and the minimum level of the second signal during any cycle is dependent upon a selected fraction of the instantaneous signal level of the first signal. The second signal is used to control the speed of a motor in a continuously changing random manner.
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